Nickles, John.
Bibliography of Nortn American Geology for 1913 WithSubject Index. - Washington-US : United States Geological Survey Bulletin, 1914. - páginas 5-183 : IIustraciones blanco y negro - No. 584 (1914) - United States Geological Survey Bulletin ; no.584 . - United States Geological Survey. .
Bibliography of Nortn American Geology for 1913 WithSubject Index. - Washington-US : United States Geological Survey Bulletin, 1914. - páginas 5-183 : IIustraciones blanco y negro - No. 584 (1914) - United States Geological Survey Bulletin ; no.584 . - United States Geological Survey. .